4

Jan 03, 2003

SAW Components

B4871

135,54 MHz

Low Loss Filter for Mobile Communication

Data Sheet

Test matching networks to 50

Ω (element values depend on pcb layout)

a) Unbalanced - unbalanced matching network

b) Balanced - balanced matching network

Input: Pin 12

Output: Pin 6

Input: Pins 12 and 10

Output: Pins 6 and 4

Note :

The balanced - balanced network is realized using TOKO 1:1 baluns B5FL. The insertion attenu-

insertion attenuation. S-Parameters of the TOKO 1:1 balun B5FL are available on request.

The level of ultimate suppression may be limited by electromagnetic feedthrough depending on

the layout of the pcb and the arrangement of the matching components.

The above mentioned characteristics can be realized either in balanced or in unbalanced mode

of operation.

For more details see our application note

PCB Layout for Highly Selective IF Filters.